| Description | Date | Identifier | |
| Letter to Joseph Lucas Ltd. providing feedback on the trial of special P.100 bi-focal headlamps. | 8th Dec 1934 | Box 61a \ 2 scan0425 | |
| Conclusion of a letter discussing ongoing lamp tests and requesting modified glasses for extra beam spread. | 10th Dec 1934 | Box 61a \ 2 scan0426 | |
| Suggesting a comparative test of the Stelmar patent fog lamp. | 10th Dec 1934 | Box 61a \ 2 scan0427 | |
| Letter discussing the testing of a Stelmar Patent Fog Lamp and requesting a sample for evaluation. | 10th Dec 1934 | Box 61a \ 2 scan0428 | |
| Instruction to fit a P.100 headlamp with 'Nebulite' glass to a Spectre chassis. | 11th Dec 1934 | Box 61a \ 2 scan0429 | |
| Letter from Banting & Tresilian Ltd. concerning the supply and testing of a Stelmar Patent Fog and Anti-Dazzle Lamp. | 11th Dec 1934 | Box 61a \ 2 scan0430 | |
| Letter discussing the demonstration, dimensions, and testing of a lamp with novel optical features. | 11th Dec 1934 | Box 61a \ 2 scan0431 | |
| Dimensional drawing of a 'Stelmar' lamp, showing two mounting fork options. | 12th Dec 1934 | Box 61a \ 2 scan0432 | |
| Instruction to fit a Currus fog lamp to a Vauxhall. | 12th Dec 1934 | Box 61a \ 2 scan0433 | |
| Request to order 200 ft. of twin lighting flex for hand lamps on an experimental chassis. | 13th Dec 1934 | Box 61a \ 2 scan0434 | |
| Requesting a date for a demonstration of headlamps and fog lamps for R-R and Bentley chassis. | 17th Dec 1934 | Box 61a \ 2 scan0435 | |
| Letter from Carl Zeiss (London) Ltd regarding the dispatch of Zeseaps headlamps for trial. | 17th Dec 1934 | Box 61a \ 2 scan0436 | |
| Trial pair of Zeiss headlamps, comparing their features to the P.100 and Bosch models. | 17th Dec 1934 | Box 61a \ 2 scan0437 | |
| Invitation to Derby to inspect various lamps including the new P.100, Bosch, and Zeiss models. | 18th Dec 1934 | Box 61a \ 2 scan0438 | |
| Querying an invoice from Joseph Lucas Ltd. for lamps ordered by telephone. | 18th Dec 1934 | Box 61a \ 2 scan0439 | |
| Arrangement of lamp tests, including after-dark road testing and demonstrations. | 20th Dec 1934 | Box 61a \ 2 scan0440 | |
| The decision to keep two Lucas Fog Lamps and return one. | 20th Dec 1934 | Box 61a \ 2 scan0441 | |
| Return of Lucas 20/25 type bi-flex headlamps for overhaul and modification. | 20th Dec 1934 | Box 61a \ 2 scan0442 | |
| Invoice for a 'Merit' Fog Lamp and a request to check its delivery status. | 21th Dec 1934 | Box 61a \ 2 scan0443 | |
| Request for the manufacture of two lamp adaptors (DB736 and DB737) to trial Zeiss headlamps. | 28th Dec 1934 | Box 61a \ 2 scan0444 | |
| Requesting an order for Currus fog lamps for several experimental chassis. | 28th Dec 1934 | Box 61a \ 2 scan0445 | |
| Disappointing demonstration of new headlamp and fog lamp schemes. | 29th Dec 1929 | Box 61a \ 2 scan0446 | |
| Technical memorandum discussing car lamp schemes, including double filament bulbs, fixed reflectors, and separate fog lamps. | 29th Dec 1934 | Box 61a \ 2 scan0447 | |
| Trial and potential standardization of the German-made Currus fog lamp. | 29th Dec 1934 | Box 61a \ 2 scan0448 | |
| Outcome of lamp demonstrations, focusing on driving light power, anti-dazzle schemes, and fog lamps. | 9th Dec 1934 | Box 61a \ 2 scan0449 | |
| Letter to Joseph Lucas Ltd. regarding the testing and inspection of bi-focal P.100 headlamps. | 29th Dec 1934 | Box 61a \ 2 scan0450 | |
| Reviewing the 'Currus' fog lamp, detailing its features, performance, and suggesting improvements. | 31th Dec 1934 | Box 61a \ 2 scan0451 | |
| Corrections for a previous document about headlamps and fog lamps. | 31th Dec 1934 | Box 61a \ 2 scan0452 | |
| Return of a pair of Zeiss headlamps that were loaned for testing. | 31th Dec 1934 | Box 61a \ 2 scan0453 | |
| Arranging a visit with Messrs. Lucas to discuss improvements for headlamps and fog lamps. | 1st Nov 1935 | Box 61a \ 2 scan0454 | |
| Query from the Sales department regarding the scheme for indicating when headlights are dipped on certain chassis. | 1st Jan 1935 | Box 61a \ 2 scan0455 | |
| Scheme for indicating when headlamps are dipped is being tested on a Bentley chassis before approval. | 21th Mar 1935 | Box 61a \ 2 scan0456 | |
| Correspondence regarding sourcing 100% British-made headlamps and fog lamps from Currus Ltd. | 2nd Jan 1935 | Box 61a \ 2 scan0457 | |
| Manufacturing origins and component suppliers for Carrus Fog Lamps. | 1st Jan 1935 | Box 61a \ 2 scan0458 | |
| Letter from Banting & Tresilian, Ltd. proposing a demonstration of their 'Stelmar' patent combined anti-glare headlamp and foglamp. | 3rd Jan 1935 | Box 61a \ 2 scan0459 | |
| Page 2 of a letter from Banting & Tresilian, Ltd. regarding the optical properties and correct fitment of a lamp. | 4th Jan 1935 | Box 61a \ 2 scan0460 | |
| Requesting the fitting of various fog lamps to specific experimental chassis for testing. | 4th Jan 1935 | Box 61a \ 2 scan0461 | |
| The return of two pairs of experimental P.100 Lucas headlamps for modification. | 4th Jan 1935 | Box 61a \ 2 scan0462 | |
| Letter arranging the inspection of a new fog lamp, with a potential trial fitting to follow. | 4th Jan 1935 | Box 61a \ 2 scan0463 | |
| Experiments and standardisation of headlamps and fog lamps, specifically the Currus lamp. | 4th Jan 1935 | Box 61a \ 2 scan0464 | |
| Letter from Banting & Tresilian Ltd. arranging a meeting regarding their Stelmar Fog and Anti-Dazzle Lamp. | 7th Jan 1935 | Box 61a \ 2 scan0465 | |
| Letter to Messrs. Currus Ltd. regarding an uninsulated switch supplied with fog lamps. | 8th Jan 1935 | Box 61a \ 2 scan0466 | |
| Letter from Banting & Tresilian, Ltd. regarding the demonstration of a Stelmar Fog and Anti-Dazzle Lamp. | 8th Jan 1935 | Box 61a \ 2 scan0467 | |
| Approbation note and costs for lamps and parts from Carlzeiss (London) Ltd. | 9th Jan 1935 | Box 61a \ 2 scan0468 | |
| Letter from a supplier discussing three different types of switches for a Merit Road & Fog Lamp. | 9th Jan 1935 | Box 61a \ 2 scan0469 | |
| Fitting instructions for a Stelmar Fog and Anti-Dazzle Lamp from Banting & Tresilian, Ltd. | 10th Jan 1935 | Box 61a \ 2 scan0470 | |
| Instructions on fitting and adjusting a lamp, with mention of Rolls Royce cars and a follow-up offer. | 10th Jan 1935 | Box 61a \ 2 scan0471 | |
| Confirming the return of lamps to Messrs. Zeiss Ltd on a sale or return basis. | 10th Jan 1935 | Box 61a \ 2 scan0472 | |
| Despatch instruction for sending three sample switches to Messrs. Currus Ltd. | 10th Jan 1935 | Box 61a \ 2 scan0473 | |
| Standardization and mounting of Currus fog lamps on various chassis models. | 12th Jan 1935 | Box 61a \ 2 scan0474 | |
| Internal request to order three Lucas inspection lamps for fitting to experimental cars. | 14th Jan 1935 | Box 61a \ 2 scan0475 | |
| Request for road trials of Merit Fog Lamps supplied by Messrs. Currus, Limited. | 15th Jan 1935 | Box 61a \ 2 scan0476 | |
| The pricing, discount, and testing of Currus Fog Lamps. | 5th Jan 1935 | Box 61a \ 2 scan0477 | |
| The fitting of new pattern Lucas horns to chassis GLG-5. | 16th Jan 1935 | Box 61a \ 2 scan0478 | |
| Follow-up letter from Banting & Tresilian Ltd. inquiring about the test results for the Stelmar Fog and Anti-Dazzle Lamp. | 17th Jan 1935 | Box 61a \ 2 scan0479 | |
| Headlamp improvements and a comparison between Currus and Stelmar fog lamps. | 19th Jan 1935 | Box 61a \ 2 scan0480 | |
| The status of headlamps returned to Lucas and the testing of a new Stermar lamp. | 21th Jan 1935 | Box 61a \ 2 scan0481 | |
| Journalist's suggestion for a device to solve the headlight dazzle problem. | 22th Jan 1935 | Box 61a \ 2 scan0482 | |
| Newspaper article from the 'Express' about a new invention of a special reflector for car lamps to solve the dazzle problem. | 11th Jan 1935 | Box 61a \ 2 scan0483 | |
| Letter responding to a customer about an inventor's anti-dazzle headlight device. | 22th Jan 1935 | Box 61a \ 2 scan0484 | |
| Urgency of a decision on headlamps with the supplier Lucas. | 23th Jan 1935 | Box 61a \ 2 scan0485 | |
| Letter from Joseph Lucas Ltd. regarding the charge for overhauling and modifying two headlamps. | 23th Jan 1935 | Box 61a \ 2 scan0486 | |
| The failure of P.100 headlamps and the introduction of a new strengthened bracket. | 23th Jan 1935 | Box 61a \ 2 scan0487 | |
| Letter from a motoring correspondent suggesting a new type of headlamp reflector for experimentation. | 23th Jan 1935 | Box 61a \ 2 scan0488 | |
| Arranging a demonstration for a lamp reflector inventor. | 24th Jan 1935 | Box 61a \ 2 scan0489 | |
| Letter to W.A. Gibson Martin confirming an invitation has been sent to Mr. Jones for a visit. | 24th Jan 1935 | Box 61a \ 2 scan0490 | |
| Letter inviting Mr. Jones to demonstrate his patented headlamp reflector. | 24th Jan 1935 | Box 61a \ 2 scan0491 | |
| Letter from The Safelight Motor Lamp Co. Ltd. arranging a meeting on a specific date and time. | 25th Jan 1935 | Box 61a \ 2 scan0492 | |
| Supply and fitting of Currus fog lamps on various chassis models. | 26th Jan 1935 | Box 61a \ 2 scan0493 | |
| Letter to Mr. Neill of Joseph Lucas Ltd. requesting an opinion on the Safelight Motor Lamp. | 26th Jan 1935 | Box 61a \ 2 scan0494 | |
| The repair of a faulty Lucas P.100 headlamp. | 29th Jan 1935 | Box 61a \ 2 scan0495 | |
| Letter from The Safelight Motor Lamp Co. Ltd. proposing a demonstration of their non-dazzling headlamps. | 30th Jan 1935 | Box 61a \ 2 scan0496 | |
| Cover note for an attached letter to Mr. E. Jones regarding Safelight headlamps. | 31th Jan 1935 | Box 61a \ 2 scan0497 | |
| Letter to The Safelight Motor Lamp Co. Ltd. regarding the principles of headlamp design to prevent dazzle. | 31th Jan 1935 | Box 61a \ 2 scan0498 | |
| The concluding page of a letter regarding the examination of a lamp and declining further development. | 4th Feb 1935 | Box 61a \ 2 scan0499 | |
| Letter from a headlamp manufacturer promoting their 'Safelight' non-dazzle device. | 4th Feb 1935 | Box 61a \ 2 scan0500 | |
| Letter to The Safelight Motor Lamp Co. Ltd. declining an offer to further inspect their Dazzle Device. | 6th Feb 1935 | Box 61a \ 2 scan0501 | |
| Requesting the fitting of new plain centre front glasses to a pair of Lucas P.100 headlamps. | 6th Feb 1935 | Box 61a \ 2 scan0502 | |
| The performance of new headlamps, noting issues with the dipping mechanism and a defective contact. | 9th Feb 1935 | Box 61a \ 2 scan0503 | |
| Asking for feedback on the performance of new headlamps in slight mist. | 12th Feb 1935 | Box 61a \ 2 scan0504 | |
| Implementation of a dual control system for headlamps. | 12th Feb 1935 | Box 61a \ 2 scan0505 | |
| Standardization of a foot switch for headlamp dipping on all cars. | 12th Feb 1935 | Box 61a \ 2 scan0506 | |
| Letter to Joseph Lucas Ltd. inquiring about a sample of under-bonnet lights. | 13th Dec 1934 | Box 61a \ 2 scan0507 | |
| Simplified dual switching scheme for headlamps and testing of new P.100 lamps. | 13th Feb 1935 | Box 61a \ 2 scan0508 | |
| Failures of the P.100 headlamp dipping mechanism bracket and communication with the supplier, Messrs. Lucas. | 14th Feb 1935 | Box 61a \ 2 scan0509 | |
| Letter to Joseph Lucas, Limited regarding the breakage of a headlamp bracket for the dimming mechanism. | 17th Oct 1934 | Box 61a \ 2 scan0510 | |
| Letter from Joseph Lucas, Limited regarding a returned sample bracket that had fractured. | 19th Oct 1934 | Box 61a \ 2 scan0511 | |
| Follow-up letter to Joseph Lucas Ltd. regarding a recurring failure of a bracket carrying the dipping mechanism on P.100 lamps. | 31th Jan 1935 | Box 61a \ 2 scan0512 | |
| Letter from Joseph Lucas Ltd concerning fractured dipping unit brackets on P.100 headlamps. | 8th Feb 1935 | Box 61a \ 2 scan0513 | |
| Letter to Joseph Lucas Ltd. regarding a P.100 headlamp with a broken dipping mechanism bracket. | 14th Feb 1935 | Box 61a \ 2 scan0514 | |
| The failure of P.100 headlamps and a proposed modification with supplier Messrs. Lucas. | 21th Feb 1935 | Box 61a \ 2 scan0515 | |
| Discussion about a new foot-operated headlamp changeover switch and P.100 bi-focal headlights. | 14th Feb 1935 | Box 61a \ 2 scan0516 | |
| Internal memorandum requesting a reply concerning headlamps. | 15th Feb 1935 | Box 61a \ 2 scan0517 | |
| Proposed scheme and ongoing experiments on bifocal lamps. | 15th Feb 1935 | Box 61a \ 2 scan0518 | |
| P.100 headlamp and correspondence with Lucas. | 16th Feb 1935 | Box 61a \ 2 scan0519 | |
| The requirements for implementing a new headlight control and changeover switch. | 18th Feb 1935 | Box 61a \ 2 scan0520 | |
| Request for copies of a headlight diagram for distribution to interested coachbuilders. | 18th Feb 1935 | Box 61a \ 2 scan0521 | |
| The manufacturing of a proprietary foot switch for headlight control on the Bentley chassis to replace one of German origin. | 19th Feb 1935 | Box 61a \ 2 scan0522 | |
| Confirming the dispatch of six headlight wiring diagrams in response to a request. | 20th Feb 1935 | Box 61a \ 2 scan0523 | |
| Order request for a pair of P.100 headlamps with new front glass with a plain centre. | 21th Feb 1935 | Box 61a \ 2 scan0524 | |
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